Resideo bp900 Dual Check Backflow Preventer 1/2 Inch Npt

Product Description

The RESIDEO bp900 is a dual check backflow preventer designed for continuous pressure applications on small supply lines. It features an intermediate vacuum breaker that protects potable water supplies from backflow and back siphonage caused by contaminated water intrusion. Sized at 1/2 inch NPT, the bp900 is suited for installation by licensed plumbers in residential, commercial, and light industrial settings where cross-connection control is required by local codes. Its compact design makes it a practical solution for protecting drinking water systems in a range of low-flow supply applications.

The bp900 is well suited for boiler feed lines, livestock drinking fountains, trailer park water hook-ups, and laboratory equipment connections. It is appropriate for any small supply line application where continuous pressure is present and protection against back siphonage or backflow is required by code or best practice. Licensed plumbers and pipefitters are the primary installers for this type of device in both new construction and retrofit service work.

Key Features

• Dual check valve design provides two independent barriers against backflow
• Intermediate vacuum breaker protects against back siphonage
• Rated for continuous pressure applications on small supply lines
• 1/2 inch NPT connections for straightforward threaded installation
• Suitable for potable water system protection across multiple application types

Compatibility

Designed as an OEM-style replacement or new-installation backflow preventer for 1/2 inch NPT threaded supply lines in residential and light commercial plumbing systems.

Installation Notes

Installation of backflow preventers on potable water lines must comply with applicable local plumbing codes, including IPC and IAPMO standards where adopted. Shut off the water supply and relieve line pressure before removing any existing device or making connections. A licensed plumber should perform or inspect the installation to ensure proper orientation and code compliance. Do not install in a location where the device cannot be inspected or serviced.